Patent US1951950A successfully refreshed from Google Patents.
Patent US3063854A successfully refreshed from Google Patents.
US3063854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper coating composition
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1959-11-18
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Granted: 1962-11-13
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Arlie W Claxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:31
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/46; D21H19/38; D21H19/40; D21H19/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COMPOSITION FOR COATING PAPER TO IMPROVE THE PRINTING CHARACTERISTICS THEREOF WHICH COMPRISES WATER HAVING DISPERSED THEREIN AN AMYLACEOUS ADHESIVE, KAOLIN CLAY AND A SMALL AMOUNT OF A POLYAMINE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKYLENE POLYAMINES, MINERAL ACID AND ACETIC ACID SALTS THEREOF, SAID ALKYLENE POLYAMINE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
52 words
A COMPOSITION FOR COATING PAPER TO IMPROVE THE PRINTING CHARACTERISTICS THEREOF WHICH COMPRISES WATER HAVING DISPERSED THEREIN AN AMYLACEOUS ADHESIVE, KAOLIN CLAY AND A SMALL AMOUNT OF A POLYAMINE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKYLENE POLYAMINES, MINERAL ACID AND ACETIC ACID SALTS THEREOF, SAID ALKYLENE POLYAMINE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |